/* ============================================================
   I9 Experts — Shared site styles
   Built on the brand tokens in tokens.css
   ============================================================ */
@import url("tokens.css");

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--bg1);
  color: var(--fg1);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
h1, h2, h3, h4, h5, p { margin: 0; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 40px; }
.eyebrow {
  font-family: var(--font-body); font-weight: 700; font-size: var(--text-sm);
  letter-spacing: var(--tracking-caps); text-transform: uppercase;
}

/* ---------- Buttons ---------- */
.btn {
  font-family: var(--font-body); font-weight: 700; font-size: 15px;
  border: none; cursor: pointer; border-radius: var(--radius-md);
  display: inline-flex; align-items: center; gap: 8px; padding: 13px 24px;
  transition: transform .16s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap; line-height: 1;
}
.btn svg { width: 18px; height: 18px; }
.btn-lg { font-size: 16px; padding: 16px 30px; }
.btn-sm { font-size: 14px; padding: 10px 18px; }
.btn-primary { background: var(--i9-grad-primary); color: #fff; box-shadow: var(--shadow-brand); }
.btn-teal { background: var(--i9-grad-teal); color: #fff; box-shadow: var(--shadow-teal); border-radius: var(--radius-pill); }
.btn-ghost { background: transparent; color: var(--i9-indigo); border: 1.5px solid var(--border-strong); }
.btn-white { background: #fff; color: var(--i9-navy); box-shadow: var(--shadow-sm); }
.btn-ghost-white { background: rgba(255,255,255,.10); color: #fff; border: 1.5px solid rgba(255,255,255,.45); }
.btn:hover { transform: translateY(-2px); }
.btn-primary:hover { box-shadow: var(--shadow-lg); }
.btn-ghost:hover { border-color: var(--i9-indigo); color: var(--i9-navy); }
.btn-white:hover { box-shadow: var(--shadow-md); }
.btn-ghost-white:hover { background: rgba(255,255,255,.20); }
.btn:active { transform: scale(.98); }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 40px;
  transition: background .28s ease, border-color .28s ease, padding .28s ease, box-shadow .28s ease;
  border-bottom: 1px solid transparent;
}
.site-header .logo { height: 40px; }
.site-header .logo-light { display: none; }
.site-header .navlinks { display: flex; gap: 32px; align-items: center; }
.site-header .navlinks a {
  font-size: 15px; font-weight: 600; color: var(--fg2);
  transition: color .15s ease; position: relative;
}
.site-header .navlinks a:hover, .site-header .navlinks a.active { color: var(--i9-indigo); }
.site-header.scrolled {
  background: rgba(255,255,255,.85); backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border); padding: 11px 40px;
  box-shadow: var(--shadow-xs);
}
/* dark/transparent-over-dark header variant (for dark heroes) */
.site-header.on-dark .navlinks a { color: rgba(255,255,255,.82); }
.site-header.on-dark .navlinks a:hover, .site-header.on-dark .navlinks a.active { color: #fff; }
.site-header.on-dark .logo-dark { display: none; }
.site-header.on-dark .logo-light { display: block; }
.site-header.on-dark.scrolled { background: rgba(35,38,79,.78); border-bottom-color: rgba(255,255,255,.12); }

.header-mobile-toggle { display: none; background: none; border: none; cursor: pointer; color: var(--fg1); }
.site-header.on-dark .header-mobile-toggle { color: #fff; }

/* ---------- Mega menu ---------- */
.navitem { position: static; display: flex; align-items: center; }
.navitem > a { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }
.navitem > a .chev { width: 14px; height: 14px; opacity: .65; transition: transform .2s ease; }
.navitem:hover > a .chev { transform: rotate(180deg); }
.mega {
  position: absolute; top: 100%; left: 0; right: 0; padding-top: 12px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s; z-index: 90;
}
.navitem:hover .mega, .navitem:focus-within .mega { opacity: 1; visibility: visible; transform: none; }
.mega-inner {
  max-width: 1120px; margin: 0 auto; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 26px 30px;
  display: grid; gap: 26px 30px;
}
.mega-cols-4 { grid-template-columns: repeat(4, 1fr); }
.mega-cols-3 { grid-template-columns: repeat(3, 1fr); }
.mega-col h5 { font-family: var(--font-body); font-weight: 700; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-strong); margin: 0 0 8px; padding-left: 10px; }
.mega-link { display: flex; align-items: flex-start; gap: 11px; padding: 9px 10px; border-radius: var(--radius-sm); transition: background .15s ease; }
.mega-link:hover { background: var(--bg2); }
.mega-link .mi { width: 34px; height: 34px; border-radius: var(--radius-sm); background: var(--i9-indigo-100); color: var(--i9-indigo); display: flex; align-items: center; justify-content: center; flex: 0 0 34px; }
.mega-link .mi svg { width: 18px; height: 18px; }
.mega-link b { display: block; font-size: 14px; font-weight: 700; color: var(--fg1); }
.mega-link span { display: block; font-size: 12px; color: var(--fg3); line-height: 1.4; margin-top: 2px; }
.mega-foot { grid-column: 1 / -1; margin-top: 2px; border-top: 1px solid var(--border); padding-top: 18px; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.mega-foot .mf-copy { font-size: 13px; color: var(--fg2); }
.mega-foot .mf-copy b { color: var(--fg1); font-family: var(--font-display); }

/* ---------- Footer ---------- */
.site-footer { background: var(--i9-navy-900); color: #fff; padding: 72px 0 32px; }
.site-footer .foot-grid { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 40px; }
.site-footer .foot-logo { height: 52px; margin: 0 0 18px -6px; }
.site-footer .foot-tag { font-size: 14px; line-height: 1.65; color: rgba(255,255,255,.6); max-width: 290px; }
.site-footer .foot-col h4 {
  font-size: 13px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--i9-teal-300); margin-bottom: 16px;
}
.site-footer .foot-col .links { display: flex; flex-direction: column; gap: 11px; }
.site-footer .foot-col .links a { font-size: 14px; color: rgba(255,255,255,.72); transition: color .15s ease; }
.site-footer .foot-col .links a:hover { color: #fff; }
.site-footer .foot-bottom {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap;
}
.site-footer .foot-bottom span { font-size: 13px; color: rgba(255,255,255,.5); }
.site-footer .foot-social { display: flex; gap: 14px; }
.site-footer .foot-social a {
  width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.08); color: rgba(255,255,255,.75); transition: background .15s ease, color .15s ease;
}
.site-footer .foot-social a:hover { background: var(--i9-teal); color: #fff; }
.site-footer .foot-social svg { width: 18px; height: 18px; }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .40s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto; }
}
/* environments where CSS transitions don't advance (capture/idle): show everything */
html.no-anim .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }

/* ---------- Orbital motif (reusable) ---------- */
@keyframes orbit-spin { to { transform: rotate(360deg); } }
@keyframes orbit-spin-rev { to { transform: rotate(-360deg); } }
@keyframes orbit-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pulse-soft { 0%,100% { opacity: .5; } 50% { opacity: 1; } }
.orbit-ring { position: absolute; border-radius: 50%; border: 1.5px solid rgba(255,255,255,.16); }

/* gradient text helper */
.grad-text {
  background: var(--i9-grad-orbit); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* section eyebrow + heading defaults */
.sec-head { text-align: center; max-width: 620px; margin: 0 auto 56px; }
.sec-head h2 {
  font-family: var(--font-display); font-weight: 700; font-size: var(--text-3xl);
  line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); color: var(--fg1); margin: 12px 0 14px;
}
.sec-head p { font-size: var(--text-md); line-height: var(--lh-base); color: var(--fg2); }

@media (max-width: 860px) {
  .wrap { padding: 0 22px; }
  .site-header { padding: 14px 22px; }
  .site-header.scrolled { padding: 10px 22px; }
  .site-header .navlinks { display: none; }
  .site-header .navlinks.open {
    display: flex; flex-direction: column; gap: 4px; position: absolute; top: 100%; right: 22px;
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
    padding: 14px 18px; box-shadow: var(--shadow-md); min-width: 200px; align-items: stretch;
  }
  .site-header .navlinks.open a, .site-header.on-dark .navlinks.open a { color: var(--fg1); padding: 8px 0; }
  .site-header .navlinks.open .navitem { display: block; }
  .site-header .navlinks.open .navitem > a .chev { display: none; }
  .mega { display: none; }
  .header-mobile-toggle { display: inline-flex; }
  .site-footer .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}